I would say that the verbal tests were a bit (Slightly) hard than the GMAT prep Section, but the questions are of supreme quality. I learnt a new concept almost on every 1 out of 2 questions.

For Quant , I would say that the tests were more or less similar to the GMAT Prep Sections.

One Advice or amendment that i would like to see is the increase in number of verbal tests. As of now you offer only 9 Verbal Tests compared with 26 Quant Tests, that is quite a huge difference. I am definitely looking forward to see more of the Verbal Tests as the non native speakers are generally concerned about the Verbal Section.